>>37428328Title Reveal in February.
Proper trailer for Mewtwo Strikes Back Evolution in March that may also include significant information such as new form(s) or a brand new Mythical..
Starters and Box Legends in April.
Detective Pikachu's theatrical release in May, which comes with a Gen 8 Teaser (no new Pokemon, however).
First load of big news appears in June, mostly showing the first few areas of the game and the typical Regional Bird/Rodent/Bug, maybe others.
Mewtwo Strikes Back Evolution's theatrical release in Japan in July, afterwards they begin bombarding us with news every 1-2 weeks at a pace that effectively spoils the entire game before release date, which, as always, will be the week before Black Friday.
And then they'll reveal the next games sometime in the middle of 2020, naturally set to release the week before Black Friday as the cycle continues every year until a new generation is on the horizon, starting it from the beginning.